Question

Given the set: `{5,x,11,-3,-12,19,10}`, for what x would the mean of the set be 0?

Answer 1

`x=-30`

Explanation:

`sumx_i/n=0`
`(5+x+11-3-12+19+10)/7=0`
solve for x
`(30+x)/7=0`
`x=-30`